T
H
E

E
L
E
M
E
N
T
S
Book II   Proposition 1
For
    let BF be drawn from B at right angles to BC; [I.11]

    let BG be made equal to A, [I.3]
through G
    let GH be drawn parallel to BC, [I.31]
and through D, E, C
    let DK, EL, CH be drawn parallel to BG.
Previous Page    Return to Propositions    Next Page